Halfdan the Black arrives in Kattegat, Floki reveals a secret to Finehair, Ragnar and Yidu become closer and Lagertha settles a score.
The Monte Carlo ePrix. Action from the fifth round of the season, which was staged at the Circuit de Monaco.
Two teams of scientists demonstrate why electricity could help end humanity's reliance on fossil fuels, and build an electric speedboat and plane to prove their point.
Meet the Superbrains
Judd Trump v Stuart Bingham. Action from the seventh day at the Motorpoint Arena in Cardiff, featuring the final.
Snooker: Welsh Open
The designers must create a high-fashion look inspired by Austin, Texas, using unconventional materials. Later, Tim Gunn adds an extra twist to the challenge.
A machine has a strange effect on Henry that causes problems in a date.
Bruce gets notice that his buyer is closing early, Troy issues a mandate to catch big gators only, and Joey and Dorien get stranded.